Calculate the force of a wrecking ball that weighs 1,000 kilograms and is accelerating at 12 meters per second squared.

The force can be calculated using Newton's second law of motion, which states that force (F) is equal to the mass (m) of an object multiplied by its acceleration (a).

Given:
Mass (m) = 1000 kg
Acceleration (a) = 12 m/s²

Using the formula:
F = m * a

F = 1000 kg * 12 m/s²

F = 12000 kg*m/s²

The force of the wrecking ball is 12000 Newtons.

If the action force is 20 newtons, what is the magnitude of the reaction force?

According to Newton's third law of motion, the reaction force is equal in magnitude but opposite in direction to the action force. Therefore, if the action force is 20 Newtons, the magnitude of the reaction force will also be 20 Newtons.